Answer:
Large-scale economic growth that resulted in the rise of big business
Explanation:
The completion of the transcontinental railroad, the invention of the Bessemer Process and improvements in communication contributed to large-scale economic growth that resulted in the rise of big business.
Henry Bessemer invented a process of making steel that made its production cheaper and more efficient. This helped in mass production of steel and steel frame constructions in buildings.
The invention of Henry Bessemer made the removal of impurities in steel cheap and easy which made steel to be produced in large quantities.
